1. Dziwani zofunikira
Magawo aumisiri a mankhwalawa amatha kuwonetsa momwe zinthu zilili. Mukamvetsetsa utoto wa epoxy anticorrosive, magawo aukadaulo akhala gawo lofunikira kwambiri pakugula. Kuchokera pamalingaliro azinthu zofunikira zaumisiri, mtundu, fineness, zolimba, kusinthasintha, mphamvu zamphamvu ndi mbali zina za filimu ya utoto zakhala gawo lofunikira. Pokhapokha magawo angapo ataphunzitsidwa bwino, Kutha kumvetsetsa bwino za mankhwalawo.
2. Dziwani kusinthasintha kwa mankhwala
Pokhapokha podziwa bwino kusinthika kwazinthu zomwe zimagwiritsidwa ntchito ndizomwe tingathe kudziwa zomwe zingagwiritsidwe ntchito popanga. Kuchokera pakuwona kusinthika kwa mankhwalawa, kukana madzi ndi kukana kwa alkali kuyenera kuganiziridwa bwino. Pambuyo pazidziwitso zofananira zitha kukhutitsidwa, kusinthika konseko kudzakhala bwinoko. .
Chifukwa chake, pogula utoto wa epoxy anticorrosive, magawo ambiri aukadaulo ayenera kuyang'aniridwa. Pokhapokha mutasanthula bwino gawo lililonse la magawo aukadaulo, mtundu wazinthu zonse ukhoza kuvomerezedwa ndi anthu. Ndikuyembekeza kuti abwenzi onse akhoza kusanthula mosamala kuti zotsatira zenizeni za kugula komaliza zikhale bwino.